AudioControl 6XS
Price: $188
6-Channel Electronic Crossover
Price: $159
Bass Booster Expander with Remote
Clarion MCD360
Price: $87
3-way Electronic Crossover
Power Acoustik PWM-20
Price: $39
4-Band ½ DIN Equalizer
Clarion EQS746
Price: $59
7-Band Equalizer
Power Acoustik PWM-70
Price: $35
1/2 DIN 7-Band Parametric Equalizer with Subwoofer Electronic Crossover